The effect of vanadium oxide as support and promoter on supported rhodium catalysts on the CO hydrogenation has been investigated at 0.15 and 4.0 MPa. Rh/V,O, reduced at 723 K has a good selectivity toward oxygenated products, especially C,-oxygenates, but has a low activity added as a promoter to catalysts consisting and stability. Vanadium oxide of rhodium supported on silica and alumina show...

Vanadium recovery of Thermal Power Plant Ash (TPPA) is an attractive process which simultaneously satisfies the pollution control standards regarding TPPA disposal and provides a valuable source of vanadium for industrial demands. In the present research work, sulfuric acid leaching route has been employed for vanadium recovery from an Iranian TPPA. Effects of acid concentration, temperature, a...

At the present day in Russia the change of ferrous metals production technology results in the change of the chemical composition of solid waste from iron and steel works. Traditional approaches to waste recycling methods stop meeting the requirements of geoecological safety. The paper offers a methodology of usage of the ferrous industry waste taking into consideration a life cycle of the mate...

HYDROGEN PEROXIDE HAS ALWAYS been a technologically attractive oxidant to the pulp and paper industry, with its significance becoming increasingly important as environmental regulations become more stringent. Beyond its ease of handling and application, hydrogen peroxide is also a versatile and benign compound whose decomposition products are water and oxygen. Among its major drawbacks are its ...

background: oral vanadyl sulfate (vanadium) induces normoglycemia, proliferates beta cells and prevents pancreatic islet atrophy in streptozotocin-induced diabetic rats. soteriological method is used to quantitate the proliferative effects of vanadium on beta-cell numbers and islet volumes of normal and diabetic rats. methods: adult male sprague-dawley rats were made diabetic with intravenous s...

M a th ia s N ow otny , C h ris to p h E lschenb ro ich* , A n d reas B ehrendt, W erner M assa, S igrid W ocad lo Fachbereich Chemie der Philipps-Universität, Hans-Meerwein-Straße, D-35032 Marburg Herrn Prof. Dr. Dr. h.c. mult. E. O. Fischer zum 75. Geburtstag gewidmet Z. Naturforsch. 48b, 1581-1588 (1993); eingegangen am 1. Juli 1993 Pyrazine Coordination, Vanadium(O), X-Ray, EPR Spectra, Cyc...

The antidiabetic activities of vanadium(V) and -(IV) prodrugs are determined by their ability to release active species upon interactions with components of biological media. The first X-ray absorption spectroscopic study of the reactivity of typical vanadium (V) antidiabetics, vanadate ([V(V)O4](3-), A) and a vanadium(IV) bis(maltolato) complex (B), with mammalian cell cultures has been perfor...